Variable loadable character generator

Details Variable loadable character generator Variable loadable character generator

G - Physics

09

G

375/15

G09G 1/00 (2006.01) G09G 1/06 (2006.01)

Patent

CA 1229440

ABSTRACT OF THE INVENTION A Loadable Character Generator is disclosed whose operation can be changed to suit various needs, such as foreign language requirements, without hardware change and with minimum hardware. The character generator translates the character code of a character to be displayed to the dot pattern for that particular character, utilizing a minimum of hardware. The loadable character generator of the invention replaces the ROM/PROM by 3 RAM utilizing 2K by 8 RAM memories, a 4K by 8 memory, 4 MUX chips, and a Motorola 6845 CRT Controller with various register.

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